Gorman-Rupp Pumps 81 1/2P47A-B 801848 and up - Manual (Page 14)

OM-02163 80 SERIES
OPERATION PAGE C - 1
OPERATION - SECTION C
Review all SAFETY information in Section A.
Follow the instructions on all tags, labels and
decals attached to the pump.
This pump is designed to handle water
and most water‐soluable herbicides
and pesticides, as well as certain chem­
icals and waste solutions within speci­
fied temperatures and concentrations.
Do not attempt to pump volatile or flam­
mable materials which may damage the
pump or endanger personnel as a result
of pump failure.
Pump speed and operating condition
points must be within the continuous per­
formance range shown on the curve (see
Section E, Page 1).
PRIMING
Install the pump and piping as described in IN­
STALLATION. Make sure that the piping connec­
tions are tight, and that the pump is securely
mounted. Check that the pump is properly lubri­
cated (see LUBRICATION in MAINTENANCE
AND REPAIR).
This pump is self‐priming, but the pump should
never be operated unless there is liquid in the
pump casing.
Never operate this pump unless there is
liquid in the pump casing. The pump will
not prime when dry. Extended operation of
a dry pump will destroy the seal assembly.
Add liquid to the pump casing when:
1. The pump is being put into service for the
first time.
2. The pump has not been used for a consider­
able length of time.
3. The liquid in the pump casing has evapo­
rated.
Once the pump casing has been filled, the pump
will prime and reprime as necessary.
After filling the pump casing, reinstall
and tighten the fill plug. Do not attempt
to operate the pump unless all connect­
ing piping is securely installed. Other­
wise, liquid in the pump forced out un­
der pressure could cause injury to per­
sonnel.
This pump is not equipped with a plug for filling the
pump casing. To fill the pump, remove the dis­
charge line and add approximately 1 gallon (3,8 li­
ters) of clean liquid. Reconnect the discharge line
and proceed with pump operation.
STARTING
Consult the operating manual furnished with the
power source before attempting to start the power
source.
If an electric motor is used to drive the pump, re­
move V‐belts, couplings, or otherwise disconnect
the pump from the motor before checking motor
rotation. Operate the motor independently while
observing the direction of the motor shaft, or cool­
ing fan.
If rotation is incorrect on a three‐phase motor, have
a qualified electrician interchange any two of the
three phase wires to change direction. If rotation is
incorrect on a single‐phase motor, consult the lit­
erature supplied with the motor for specific instruc­
tions.